摘 要:
选用健康黑白花奶牛30头,对不同超排方案的超排效果进行了比较研究。研究发现:处理1(CIDR+pFSH(CA)+PG-600法)的按时发情率明显低于处理2(CIDR+pFSH(CA)+氯前列烯醇法)和处理3(CIDR+pFSH(C)+氯前列烯醇法),分别为70%、100%和100%;处理1平均卵巢增幅为42.57±23.18,而处理2和处理3的平均卵巢增幅分别为22.94±7.97和26.26±18.68;处理2的平均黄体数大于处理1和处理3(分别为8.5、7.5和7.2),但差异不显著(P〉0.05);平均卵泡数处理1大于处理2和处理3(分别为2.1、0.3和0.2),三组差异显著(P〈0.05);处理1的胚胎回收率低于处理2和处理3(分别为45%、86%和81%),且差异显著(P〈0.05);胚胎有效率处理3最高,为80%,组2和组1其次,分别为75%和60%,但差异不显著(P〉0.05)。[著者文摘]
文章出处:
《家畜生态学报》-2006年27卷4期 -53-56页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1004-5228(2006)04-0053-04
Study on the Superovulation Effect of Several Methods to Diary Cows
JU Xiang-hong, YONG Yan-hong, YU Si-jiu(Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070)
Abstract:
The article investigated superovlation effect of different methods to healthy Houstein dairy cows. 32 cows were placed into three groups randomly. The result showed that the estrus rate of treatment 1( CIDR+ pFSH (CA)+ PG-600) is lower than that of group two (CIDR + pFSH (CA)+ Cloprostenol) or group three(CIDR+ pFSH (C) + Cloprostenol, 70 %, 100 %, 100 %, respectively). There was a significant difference in ovarien-volumeincrease among three groups(42.57±23.18,22.94±7.97, 26.26± 18.68, respectively, P〈0. 05). The number of corput luteal(CL) in group 2 is more than group one or group three(8.5,7.5,7.2, respectively), but with no significant difference(P〉0.05). However the number of follicales in group 1 is more than that of group 2 or group 3(2.1,0.3,0.2,respectively) and have a significant difference; the embryo recovery rate in group 1 is the lowest compared with group 2 or group 3 (45 %, 86 % and 81%, respectively),with a significant difference% there is not a significant difference among three groups in the embryo valid rates(80% ,75% and 60%, respectively, P〉0.05).[著者文摘]
Key words:
Dairy cow ; Superovulation ; CIDR ; FSH
基金资助:
甘肃省农业生物技术研究及应用开发项目,编号:GNSW-2004-07.

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